The nurse is caring for a client who recently underwent a total hip replacement. The nurse should（）

A. ease the client onto a low toilet seat.

B. allow the client’s legs to be crossed at the knees when out of bed.

C. use soft chairs when the client is sitting out of bed.

D. limit client hip flexion when sitting.

正常胎位分娩机制的概念正确的是（）

A.衔接：胎头颅骨最低点接近或达到坐骨棘水平

B.下降：呈持续性，贯穿分娩全过程

C.俯屈：经俯屈胎头前囟位置最低

D.内旋转：胎头到达骨盆出口适应骨盆纵轴而旋转

E.仰伸：胎头颏部紧贴胸部